Turret-machine



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.lOl-IN L. BOGERT, OF FLUSHING, NEV YORK.

TURRET-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 576,717, dated February9, 1897'.

Application filed February 8, 1896. Serial N0. 578,461. (No modehl Be itknown that l, JOHN L. BOGERT, residing in Flushing, Queens county, NewYork, have invented certain new and useful Improvements inTurret-Machines, of which the following is a specification. a

My invention relates to improvements in the general construction andarrangement of the turrets in turret-lathes and analogous machines.

The object of my invention is to permit the work to be passed partly orentirely into or through the turret as and when desired to enable thetool carried by the turret to pass close up to the face-plate.

The invention consists in a turret having alined apertures leadingacross it for the passage of the work and novel means for holding theturret rotatively upon a cross-slide of a lathe. The turret andcross-slide are also so arranged that the chips and oil can be carriedaway without interfering with the crossfeed screw of the cross-slide.

The invention also consists in the novel details of improvement and thecombinations of parts that will be more fully hereinafter set forth andthen pointed out in the claims.

Reference is to be had to the accompanying drawings, forming parthereof, wherein- Figure l is a partly sectional plan view of a turretprovided with my improvements, shown in position on a cross-slide, thesection being taken on the line l l in Fig. 2. Fig. 2 is a verticalcross-section on the line 2 2 in Fig. 1. Fig. 3 is a plan view of thecross-slid e, the turret being removed; and Fig. 4 is a side elevationof the turret detached from the cross-slide.

In the accompanying drawings, in which similar numerals of referenceindicate correspon ding parts in the several views, the'number lindicates a cross-slide, which may be of suitable construction andarranged to be carried and moved on a carriage (not shown) of a lathe oranalogous machine in any suitable manner. y

The cross-slide 1 is shown in the drawings in the form of a hollowcasting having an annular ring or seat 2 near its upper outer edge uponwhich the turret 3 rests and rotates, and the cross-slide l also has acentral cavity or recess l and a bore or bearing lb and an annular seator shelf l. The cross-slide l also has an annular cavity or chamber l,formed by the bottom plate le, outer walls lf,

and inner walls 1g, and across the top of this cavity ld extendconnecting-arms 1h, between which arms openin gs li are formed, asshown.

The turret 3 is generally at its upper portion of ordinary or suitableform provided with a lower annular rim 3, which rides on the ring orseat 2 of the cross-slide. In each side or face of the turret anaperture or recess 4 is formed, all of which lead to a central opening5. The apertures 4 in opposite faces of the turret are in line, so thata bar or other work to be operated upon can pass entirely through theturret through the alined openings 4.

From the central lower portion of the turret 3 depends a cone-like hubor pivot 6, which passes into or in line with the central cavity l ofthe cross-slide. The hub 6 ts in a corresponding bore 7 in a bushing 7,which is located in the bore l of the cross-slide and has an annularshoulder or flange 7b, that rests on the seat lc of the cross-slide, thebushing 7 being secured thereto by screws 8, as shown in Fig. 2. Theflange' 7b has its convex surface 7 so constructed as to engage with aclamp or binder-ring 9, and also has a top flat seat or surface 7 d,upon which latter surface the turret 3 rests, as shown in Fig. 2. Asshown, the convex surface 7 C of the flange 7b of the bushing or bearing7 is conical.

The clamp or binder-ring 9 serves as a gib, which lits in acorresponding recess 9? in the under surface of the turret and in acorresponding annular recess la in cross-slide l, and said ring 9 has asurface 9b corresponding to the surface 7c of the bushing or bearing 7.The ring 9 is held in place on the turret and may be adjusted verticallyby means of bolts or screws l0, that pass downwardly through said turretand screw into suitable threaded apertures in the ring. Ihave shownthree screws l0 placed at about one hundred and twenty degrees apart andlocated between corresponding apertures 4 in the turret. By

adjusting the ring 9 up or down the corre-- sponding surfaces 7c and 9bof the bushing 7 and ring 9 may be drawn more or less tightly togetherfor the purpose of adjusting and holding the turret in position on thecross- IOO slide and also i'or taking up wear between the parts.l-linder-nuts'lO are provided on the adjusting screws or bolts l0,whereby the turret can be bound tightly to the cross-slide in anydesired position through the medium of the ring 0 and bushing 7. Bypreference washers 10" are interposed between the nuts l0 and the top ofthe turret. rlhis bushing and ring also act to resist lateral thrusts ofthe turret and also serve to keep the turret from tilting on theerossslide. The cone-like hub (i and the corresponding bore 7 in bushing7 also assist in resisting lateral thrusts of the turret and in keepingthe latter centered on the cross-slide, the hub (3 and bushing T servingas a pivot and bearing for the turret.

1l are suitabl y-arran ged set-screws carried by the tops of the turretover the apertures itor the purpose of holding a tool-bushing or othersuitable device in an aperture for machining' or guiding work therein.The tools may also be held on the fiat side faces 3C of the turret inline with the apertures et by means of screws that may enter tappedholes l2 in the faces 8C. (See Fig. l.)

Any suitable means may be provided for holding the turret in properworking position on the cross-slide. I have shown a verticallymovablepin li, carried in suitable bearings on the cross-slide l and adapted toenter apthe turret. The locking-pin 1i may be arranged and operated asshown in my Patent No. 551,846, dated December 2i, 1895.

To adjust my improved turret in position on the cross-slide l, the ring9 is iirst placed in position in the cross-slide, and the bushing 7 isthen placed in position in bore 1b and screwed firmly upon its seat le.The turret 3 is then placed upon the cross-slide so that its hub orpivot G iinds its seat in the bushing orbearing 7, the ring i) enteringthe groove 5), the part 3 of the turret resting upon the seat 2 oncross-slide l. The screws l0 are then passed lthrough their appropriateapertures in the turret and screwed int-o the ring 9, so as to draw theface 9b of the latter properly against the face 7 C of the bushing orbearin g 7. The turret can now properly rotate on the cross-slide, anysuitable well-known means being employed for that purpose.

It will be observed that there is no pivot or standard passing from thecross slide upwardly through the turret, as in the old style ofturret-macliines known to me and as shown in my Patent No. 551,8i6,before mentioned. For this reason I am enabled to provide the apertures4 in the turret for the entrance and passage ot the work withoutinterference by any of the working parts of the turret. Anotheradvantage of this arrangement is that t-he work can be guided in theaperture or apertures in the turret either by allowing it to bear on thewalls of the aperture or by inserting a suitable temporary bushing inthe proper aperture 4. This will be found specially advantageous whenthe work is long and it is desired to move the turretnear or close tothe face-plate or chuck (not shown) to enable the tool to operate closethereto.

In order to carry away chips and oil that may pass into the turret withthe work, so as to prevent said chips or filings from injuring orinterfering with the cross-feed screw ot the the cross-slide, notsliown,) I provide the hub or extension 6 with a vertical aperture orbore 17, which leads from the cavity 5 in the turret entirely throughsaid hub and opens into the chamber or cavity l in the cross-slide. Thechamber ln communicates with the chamber l in the cross-slide through anaperture or apertures l in the wall 1g, from which chamber ld the refusepasses away through an aperture l in the bottom l@ of the cross-slide ordirectly through the aperture l.

Itis evident that my improvements forholding the turret pivotally ou thecross-slide can be used whether the turret is provided with aperture-ior not.

My improvements are simple in construction, effective in use, and notliable to get out oi' order, and I do not limit my invention to theprecise details of construction shown and described, as they may bevaried without departing from the spirit of my invention.

Ilaving now described my in volition, what I claim ispropriate recesses15 on the under surface of l.. A turret having apertures on oppositesides, and a hub or pivot depending therei from, combined with across-slide having a bushing or bearing to receive said hub or pivot, anadjusting ring or gib to bear on said bushing or bearing, and means forconnecting said ring or gib with said turret7 as and for the purposesspecified.

2. A turret having apertures in its sides, and a hub oi' pivot dependingtherefrom, combined with a erossslide having a cavity or bore, a bushingor bearing having a bore to receive said hub or pivot, said cross-slidehavin ga seat or shoulder to receive said bushing or bearing, means forsecuring the latter on the former, said bushing or bearing having anouter face 7C, a ring or gib having a corresponding inner face to engagethe face 7C, and means for securing said ring or gib to said turret, asand for the purposes specified.

A turret having apertures in its sides, and a hub or pivot dependingtherefrom, combined with a cross-slide having a cavity or bore, abushing or bearing having a bore to receive said hub or pivot, saidcross-slide havin g a seat or shoulder to receive said bushing orbearing, means for securing the latter on the former, said bushing orbearing having an outer face, a ring or gib having a corresponding innerface to engage the face 7, said turret and cross-slide havingcorresponding annular grooves to receive said ring or gib, and screws orbolts located in said turret and connected with said ring or gib,substantially as described.

4. The combination of a turret having a depending hub or pivot, with across-slide IOO IIO

having a cavity or bore, a bushing or bearing in said cavity or bore, aring or gib, said bush-- ing and ring having corresponding engagingfaces, and screws or bolts connecting said 5 ring or gib adjustably withsaid turret, substantially as described.

5. The combination of a turret having a depending hub or pivot, with across-slide having a cavity or bore, a shoulder le, and an 1o annulargroove lh, abushi'ng or bearing having a iiange 7b, means for securingsaid bushing or bearing to said cross-slide, `said turret having anannular groove registering with Said groove lh, a ring or gib in saidgroove,

15 said bushing or bearing and said ring or gib lhaving correspondingengaging faces, and screws or bolts for adj usta bly connecting saidring or gib with said turret, substantially as described.

zo 6. A tu rrethavin g side apertures and a central cavity or recesscomm unicatin g therewith, and a hub or pivot depending from said turretand having a bore leading to said cavity, combined with a cross-slidehaving a cavity, and a chamber leading thereto for conduct- 25 ingrefuse away, substantially as set forth.

7. The combination of a turret having adepending hub or pivot, with across-slide, a bushing carried thereby, a ring or gib to en-v gage saidbushing, adjusting bolts or screws located in said turret and serving toadjust said ring, and binder-nuts on said bolts or screws serving tobind said turret and slide together, substantially as set forth.

Signed at New York city, New York, this 35 22d day of January, 1896.

JOHN L. BOGERT.

Witnesses:

T. F. BOURNE, A. HABERSANG.

